Wine region · United States
California wine
California is the main wine state of the United States, producing about 90% of American wine. Its leading grapes include Cabernet Sauvignon, Chardonnay, Pinot Noir, Merlot and Zinfandel, on an estimated 540,000 acres (about 218,500 ha) of wine grapes in 2025. Napa Valley became its first AVA in 1981.
| Country | United States |
|---|---|
| Vineyard area | About 218,500 ha (2025) |
| Climate | Varied: cooler coastal valleys, hot inland Central Valley |
| Main grapes | Cabernet Sauvignon, Chardonnay, Pinot Noir, Zinfandel, Merlot, Sauvignon Blanc, Mission |
| Key appellations | Napa Valley, Sonoma Coast, Russian River Valley, Alexander Valley, Paso Robles, Santa Cruz Mountains, Sta. Rita Hills, Lodi |
| Wines on WineGuessr | 15 |
History
Spanish missionaries brought wine grapes to California in the late 18th century, and Father Junípero Serra is credited with planting its first vineyard at Mission San Juan Capistrano. Their Mission grape remained dominant until the 20th century. Prohibition (1920–1933) almost destroyed the industry, leaving only 140 wineries when it ended. The turning point came at the Judgment of Paris on 24 May 1976, when French judges tasting blind ranked the 1973 Stag's Leap Wine Cellars Cabernet Sauvignon and the 1973 Château Montelena Chardonnay above leading French wines. Napa Valley became California's first AVA on 28 January 1981. Recently, falling demand led to nearly 40,000 acres of vines being removed in 2024–2025.
Terroir and appellations
California has more than 140 American Viticultural Areas (AVAs). The North Coast includes Napa Valley, with 47,216 acres of vines and 17 nested AVAs such as Oakville, Rutherford, Stags Leap District and Howell Mountain, and Sonoma County, with the Sonoma Coast, Russian River Valley and Alexander Valley. The Central Coast runs from the Santa Cruz Mountains through Monterey and Paso Robles to Santa Barbara County and the Sta. Rita Hills. The hot inland Central Valley, including Lodi, grows nearly 75% of California's wine grapes.
Grapes and wine styles
California's seven leading wine grapes are Cabernet Sauvignon, Chardonnay, Merlot, Pinot Noir, Sauvignon Blanc, Syrah and Zinfandel. Napa Valley is best known for Cabernet Sauvignon and Bordeaux-style blends such as Opus One and Screaming Eagle, while Monte Bello shows the Cabernet of the Santa Cruz Mountains. Sonoma's coastal AVAs and the Sta. Rita Hills specialise in Pinot Noir and Chardonnay. Zinfandel, the same grape as Italy's Primitivo, thrives in Lodi, Paso Robles and old vineyards across the state.
15 wines from California on the map
Central Coast
Central Valley
Napa Valley
- Howell MountainAVA · Angwin, California · Red
- Napa ValleyAVA · Napa / St. Helena, California · Red & white
- OakvilleAVA · Oakville, California · Red
- Opus OneIcon wine · Oakville, California · Red
- RutherfordAVA · Rutherford, California · Red
- Screaming EagleIcon wine · Oakville, California · Red19.5 ha
- Stags Leap DistrictAVA · Yountville / Napa, California · Red
Santa Barbara County
Santa Cruz Mountains
California wine: questions and answers
How much of America's wine comes from California?
California produces about 90% of the wine made in the United States, and its vineyards covered an estimated 540,000 acres of wine grapes in 2025.
What grapes are grown in California?
California's leading wine grapes are Cabernet Sauvignon, Chardonnay, Merlot, Pinot Noir, Sauvignon Blanc, Syrah and Zinfandel.
What was the Judgment of Paris?
The Judgment of Paris was a blind tasting held on 24 May 1976 in which French judges ranked California wines first: the 1973 Stag's Leap Wine Cellars Cabernet Sauvignon among reds and the 1973 Château Montelena Chardonnay among whites.
What was California's first AVA?
Napa Valley, established on 28 January 1981, was California's first AVA and the second in the United States.
Sources: wineinstitute.org, en.wikipedia.org, en.wikipedia.org, en.wikipedia.org
Last reviewed October 2026.